我正在为需要复合主键的公司申请。
根据要求,复合材料由RegionID和AuthorizationID组成,但AuthroizationID不需要对其自身唯一。换句话说,他们希望它这样做:
RegionID AuthorizationID
300 1
300 2
100 1
所以我无法在授权上创建一个简单的身份,然后将RegionID粘贴在前面。 (相信我,我尽力不这样做)
无论如何,我在MSSQL 2008中创建了一个INSERT触发器,它输出新插入的RegionID和AuthorizationID,并将其封装在dbo.vwCreateRA中。它在MSSQL Studio中运行良好。
然而,为了使它完全可用,我希望能够从codeigniter中的插入中获取Composite PK,以将用户重定向到新创建的记录。
$sql = "INSERT INTO ReturnAuthorizations.dbo.vwCreateRA (
[Region],
[CustomerNumber],
/* a bunch of other fields... */
[UserID]
)
VALUES
?,
?,
/* a bunch of other values */
?)";
$query = $this->db->query($sql, [
$customer['SalespersonNumber'],
$customer['CustomerName'],
/* A bunch of other variables... */
$username
]);
die(var_dump($query->last_id());
给我:
Fatal error: Call to a member function last_id() on a non-object
如何通过CodeIgniter从视图的INSERT中获取OUTPUT,或者我必须依赖以下内容:
(请原谅代码,可能不是最佳做法,只是为了明确查询)
$sql = "SELECT TOP 1
RegionID,
Authorization
FROM
AuthorizationTable
WHERE
RegionID = " . $customer['Region'] . "
AND UserID = " . $username . "
ORDER BY
CreateDate DESC";
谢谢!
答案 0 :(得分:1)
您应该使用$this->db->insert_id();
替换
$query->last_id();
带
$this->db->insert_id();
更新:
您的选择查询应如下所示:
$sql = "SELECT TOP 1 RegionID, Authorization
FROM AuthorizationTable
WHERE RegionID = '" . $customer['Region'] . "' AND UserID = '" . $username . "'
ORDER BY CreateDate DESC";
见这里:https://www.codeigniter.com/user_guide/database/helpers.html#information-from-executing-a-query